Pure pedantry: Replace all ".size() == 0" with ".empty()".

net/disk_cache/mem_entry_impl.cc

 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/disk_cache/mem_entry_impl.h"
 
 #include "base/logging.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/mem_backend_impl.h"
@@ skipping 57 matching lines @@
       if (children_.get()) {
         EntryMap children;
         children.swap(*children_);
         for (EntryMap::iterator i = children.begin();
              i != children.end(); ++i) {
           // Since a pointer to this object is also saved in the map, avoid
           // dooming it.
           if (i->second != this)
             i->second->Doom();
         }
-        DCHECK(children_->size() == 0);
+        DCHECK(children_->empty());
       }
     } else {
       // If this is a child entry, detach it from the parent.
       parent_->DetachChild(child_id_);
     }
     delete this;
   }
 }
 
 void MemEntryImpl::Open() {
@@ skipping 398 matching lines @@
     scanned_len += kMaxSparseEntrySize - current_child_offset;
   }
   return scanned_len;
 }
 
 void MemEntryImpl::DetachChild(int child_id) {
   children_->erase(child_id);
 }
 
 }  // namespace disk_cache